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diff --git a/udkapi/com/sun/star/io/XActiveDataControl.idl b/udkapi/com/sun/star/io/XActiveDataControl.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef __com_sun_star_io_XActiveDataControl_idl__
+#define __com_sun_star_io_XActiveDataControl_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+
+#include <com/sun/star/io/XStreamListener.idl>
+
+
+
+module com {  module sun {  module star {  module io {
+
+/** makes it possible to control an active data source.
+
+    <p>This interface should be supported by objects which implement
+    XActiveDataSource or XActiveDataSink.</p>
+ */
+published interface XActiveDataControl: com::sun::star::uno::XInterface
+{
+    /** registers an object to receive events from this data source.
+       <p>It is suggested to allow multiple registration of the same listener,
+        thus for each time a listener is added, it has to be removed.
+     */
+    void addListener( [in] com::sun::star::io::XStreamListener aListener );
+
+    /** unregisters an object to receive events from this data source.
+
+       <p>It is suggested to allow multiple registration of the same listener,
+        thus for each time a listener is added, it has to be removed.
+     */
+    void removeListener( [in] com::sun::star::io::XStreamListener aListener );
+
+    /** starts I/O.
+
+        <p>Either XActiveDataControl::setInputStream() or
+        XActiveDataControl::setOutputStream() must be called beforehand.
+        </p>
+
+        <p>This method does not block the thread, so reading is
+        generally not finished when the method returns. </p>
+     */
+    void start();
+
+    /** does a weak abort.
+
+        <p>It closes all connected resources and calls
+        XInputStream::close() or
+        XOutputStream::close() and fires the
+        XStreamListener::terminated()-event.</p>
+     */
+    void terminate();
+
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */